An alien planet resembling Earth is hidden in Orion, 40 light years away from the Solar System. The planet Merion unknown to mankind is home to aliens who developed cutting-edge civilization. Aliens on the planet have has long explored our Solar System and the human world. In the early days, planet people visited Earth themselves, but now they are exploring the Solar System by sending out humanoids, the Grays. Buddhists and Hindus believe in spiritual immortality and reincarnation. In fact, not a few people in the world remember their past lives. They might have lived on Earth in their past lives or another planet. And there are people who have testified about their out-of-body or near-death experience. They are witnessing the fact that the human body and soul exist separately. When a human dies, the body becomes a part of nature, but the soul seems to enter the non-material spiritual world and wait for reincarnation. The main character of this novel was an ordinary young man, but his soul was kidnapped by Grays. He turned into a Gray alien and was sent to the planet Merion, where he lived for more than 50 years. Surprisingly, he reincarnates as a human being, remembering everything. This novel tells the story of his life on Earth, the story of his life on the planet Merion after the abduction of his soul, and the story of living again on Earth after being reincarnated as a human being. The novel is composed of two volumes with twelve parts. Perhaps it will give interest and empathy to readers interested in souls and reincarnations, UFOs and alien planets, space and astronomy, and the future human world. The second volume also consists of six parts and 45 sections, and describes what the main character of the novel will do in the human world after being reincarnated as a human being. His soul, combined with his grandson's body, was active from the late 21st century to the late 22nd century.